Idris is a general purpose language with full dependent types.
It is compiled, with eager evaluation.
Dependent types allow types to be predicated on values,
meaning that some aspects of a program's behaviour can be
specified precisely in the type. The language is closely
related to Epigram and Agda. There is a tutorial at
http://www.idris-lang.org/documentation.
Features include:

Readme for idris-1.3.1

Idris

Installation Guides.

This repository represents the latest development version of the
language, and may contain bugs that are being actively worked on. For
those who wish to use a more stable version of Idris please consider
installing the latest version that has been released on Hackage.
Installation instructions for various platforms can be
found on the Idris Wiki.

More information about building Idris from source has been detailed in the Installation Guide

Code Generation

Idris has support for external code generators. Supplied with the distribution
is a C code generator to compile executables, and a JavaScript code generator
with support for node.js and browser JavaScript.

More Information

If you would like to find out more information, or ask questions, we
currently have a Wiki;
a mailing list,
and an IRC channel #idris on freenode. To join the IRC channel,
point your irc client to chat.freenode.net then /join #idris.

For those further interested in using Idris for projects, the
Idris Hackers GitHub organisation is
where some interesting projects are being hosted.

For those interested in contributing to Idris directly we kindly ask that
prospective developers please consult the Contributing Guide first.